%0 Journal Article %A G. Ya. Areshkin %T Functional operators and families of set functions %J Zapiski Nauchnykh Seminarov POMI %D 1987 %P 113-118 %V 159 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_1987_159_a9/ %G ru %F ZNSL_1987_159_a9